GrandFather:

OK ... I thought that since the return didn't get to return the string that the function would return undef. So I shouldn't've removed the "return undef;" at the end.

So what is returned, then? I'm suspecting that it's the value of the condition at the end (i.e. false), but I await edification! ;^)

--roboticus

In reply to Re^3: Summing the odd/even digits of a larger number (for upc check digits)...a better way? by roboticus
in thread Summing the odd/even digits of a larger number (for upc check digits)...a better way? by EvanK

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